Private · Free · Instant

Small tools for everyday money questions.

Quick calculators that show what things really cost. No sign-up, no tracking – everything runs right in your browser.

Tools

Small costs add up

A single meeting, a coffee on the way to work or one more streaming service rarely feels expensive on its own. Add them up over a month, a year or a decade, and the numbers look very different.

Each calculator does one thing, asks only for the numbers it needs and shows the answer instantly. Everything is calculated in your browser, so your numbers stay on your device. More about costsimulators.com

Frequently asked questions

Is costsimulators.com free?

Yes. All calculators are completely free, with no sign-up, no paywall and no adverts. You can also use them at work.

Are my numbers saved or sent anywhere?

No. Everything you enter is calculated in your browser and never sent to a server. The site sets no cookies and has no analytics.

Can I share a calculation?

Yes. Your settings are kept in the page address. Press Share to copy the link, and whoever opens it sees the same calculation.